Boiler clean-out device



Mw. www.. l -l Lmwm M. HUFFMAN BQILEH CLEAN .OUT DEVICE Fuera-m1@ `15,411,921

Patented heb lli, lllt application aigri Jini@ i5,

i citizei'i of the United "and resident `oit i to pro-vide means tor-thoroughly aiiulip r toiliore in eecting a Des htlpines,fin the` county of Polk` and State oit towa,A have inventeda ceijtainnew and useful Boiler Qleanut Desde?, otwhiijh- )A y I y y l y below the clean-out devic`e,'the valve 121s the following is aspecijicationl" y My invention` relates to and consists'` in certain improvements onboile'r clean-out devicesfot `the class illustrated "inni/v Patent The object of my presentnnproyemmt is` i l i n i 4 A 4 l Eh 'l rcnfiovinggj` V4id'nnent"from the bottom of the boiler with the use Legt a less `quantity ot' water iirom the boilerthan has hereto'hnc been employed; to thereby ei'ii'ect an econu omy in the operation of thesedevices by the saving oi" a large part o'l' thep-reviously heated water which has been necessaryhere thorough cleaning` ot i `the boiler. i

i My invention consists in the constriwtion of a device to be used in the nature ot an attachment 'for lboiler cleaning-out devices.

i which attachment is of simple, durable and inexpensive construction,` and easily ,applied ,as hereinafter more fully set torth. pointed `out `in my claim, and illustrated in the accmnpanyin,e` drawingsv` in which: y y

\ Figure 1 showsan ordinary 'form oit steam boiler having a clean-out devicetherein with tin'v attachment applied thereto.

` Figure 2 shows an enlarged, detaih tif'ausverse, sectional view showing;` a portion ol the button of the boiler` and the cleanouf.,

pipe adjacenttheretm and my improved attachment applied tothe clean-out pipe; and

Figure 3 shows aperspective view illusn trating my improved attachment applied to a eleanout pipe.

ltel'erringV to the accompanying,r drawinns.` l have used the reference numeral 10 to indicate a boiler of the return 'flue type,`

The clean-out device comprises a stadioni 11 permanently supported within `the boiler in position slightly spaced above the bottom of theboiler.l ln the bottom ot the pipe 1'1. is a slot 11a. This pipe extends through. `one end of the boiler to a point out side ofthe rear furnace wall where it is provided with a discharge valve 12.`

l Within this stationary pipe 11 is a rotatable pipe 13 having' a series of slots 14 out of line with each other. Illhis rotatable pipe it i is provided at its rear end beyond the rear Barten @teau-.ouai Durme regi.

Serial No. M1806.

lllhe `operation oit this clean-out device is i opened and the hand wheelfl turned. lflllle aline'mentfwith the slotllf, andthe" pressure of steam the" `boiler violently forces the` wat?? I"from 'thefboilei' through said. "slotsand out through "the valve 12 to a point ofdis'charge, and thisfvir A infgg cu it oi water pielrsfup, [H with lit the sediment adjacent 'to tl the stationary blow-off pipe.

Devices oi. the class just described are now in general use7 and their construction and operation are well known.

My `improvement consists ot a deilector plate comprising a body `portion 16 made o1 sheet metal and restingy on top of the stationary pipe 11 .and extending througlmiu"A the length of said pipe within the boiler. lit is secured to the pipe at suitable inten vals by lLlbolts 17. Its sides are inclined This lleretotore, and without myimproved de i lector plate it was possible to remove the sediment 'from `the boiler, but the current olf water under pressure passing from the boiler required an excessive amount ot time and an excessive amount of heated Water before it thoroughly removed that part ol" the sediment that stood `spaced several inches from the slot in the blowoft pipe, and since the discharge oit the heated Water had furnace wa" l with a hand wheel by which.

sson' oftheslotsw`14tsuccessively into y downwardly and outwardly'from the top otk `iet to be con'ipensated for by a fresh change of y cold water, and this cold water had to be heated, the operation of cleaning out was too expensive. Y

By the `use of my improved deflector plate, when the slots 11a and 14 are brought to- `gether and the valve 12 is opened, the presw sure (if-steam within the boiler violently 'lorees the water through said slots and creates a current l'lowinzgr from the sides of the boiler downwardly and inwardly to the center of the boiler, and the edges of the deflec'tor plate cause this current of water to travel close to the boiler adjacent to its body, and therebycreate a current of water that travels right through the deposits of sediment instead et' over the top of said' deposits, and this causes all ol' the sediment to be removed very rapidly and Vwith a minimum loss el hot water.

lll'urtherniore7 by having the delleetor plate curved as shown in the drawings,

these currents oll water coming down the` because they are largev enough so that they will not materially interfere with the ordinary circulation ol? water from the bottom of the boiler upwardly, when the blo\\-oll' device is closed. Then the blow-olf device is open,I these holes do not have suliicient eapacity to materiallyY elle/ct the trawl of the greater body ot water under the edges o I' the deflector plate and toward the blow-ofi slots.

l claim as my invention:

The combination with a boiler clean-outy device of the class described, o1' a lellector plate secured to the boiler clean-out 'Ierce having its top inclined (lo\.\\'nwardl and outwardly toward the bottoni ol the boiler7 and its edges spaced l'roin the bottom ol' the boiler, and circulating openings l'orined in said plate, and supportingY legs :it the edges of the plate to engage and rest upon the bottom of the boiler.

Des-Moines, Iowa7 May il", 1921. 

